@@ -22,9 +22,12 @@
* functions
*/
int mgag200_modeset = -1;
+int mgag200_preferred_depth __read_mostly = 0;
MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
module_param_named(modeset, mgag200_modeset, int, 0400);
+MODULE_PARM_DESC(preferreddepth, "Set preferred bpp");
+module_param_named(preferreddepth, mgag200_preferred_depth, int, 0400);
static struct drm_driver driver;
@@ -120,6 +123,14 @@ static int __init mgag200_init(void)
if (mgag200_modeset == 0)
return -EINVAL;
+ switch (mgag200_preferred_depth) {
+ case 0: /* driver default */
+ case 16:
+ case 24:
+ break;
+ default:
+ return -EINVAL;
+ }
return drm_pci_init(&driver, &mgag200_pci_driver);
}
@@ -14,6 +14,8 @@
#include <drm/drm_crtc_helper.h>
#include "mgag200_drv.h"
+extern int mgag200_preferred_depth __read_mostly;
+
static void mga_user_framebuffer_destroy(struct drm_framebuffer *fb)
{
struct mga_framebuffer *mga_fb = to_mga_framebuffer(fb);
@@ -226,10 +228,14 @@ int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
drm_mode_config_init(dev);
dev->mode_config.funcs = (void *)&mga_mode_funcs;
- if (IS_G200_SE(mdev) && mdev->mc.vram_size < (2048*1024))
- dev->mode_config.preferred_depth = 16;
- else
- dev->mode_config.preferred_depth = 24;
+ if (mgag200_preferred_depth == 0) {
+ if (IS_G200_SE(mdev) && mdev->mc.vram_size < (2048*1024))
+ dev->mode_config.preferred_depth = 16;
+ else
+ dev->mode_config.preferred_depth = 24;
+ } else {
+ dev->mode_config.preferred_depth = mgag200_preferred_depth;
+ }
dev->mode_config.prefer_shadow = 1;
r = mgag200_modeset_init(mdev);